DNA Performance Air Filter – Triumph Bonneville Bobber 2017-24. DNA replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. They offer bigger air-flow, with almost 99% filtering efficiency. This set, consists of two filters and features DNA®’s advanced FCd (Full Contour design). A specially made stainless steel supporting frame is included with each of the DNA filter. Installation of this new DNA Air filter set is very easy; simply follow the installation instructions included in the workshop manual. Optional DNA Service Kit. DNA replacement air filters. Are designed to increase horsepower and acceleration while providing excellent filtration. The filtering efficiency is extremely high at 98-99% filtering. The flow of this new DNA filter set is +34.74% more than the stock filter. This DNA® filter is designed as a High Flow Air filter for:’Road use’. No additional information at this time. You might also like. IXIL Hyperlow Dual Exit Silencer HONDA CBR125R 2011-16. IXIL L2X Hyperlow Full System – Honda MSX125 2021-23. IXIL Race Xtrem Carbon Full System Yamaha MT-09 / SP 2021-23. IXIL Black Full System Low mount – Honda Monkey 125 2018-23.